愚人节AprilFool’sDayApril1Insixteenth-centuryFrance,thestartofthenewyearwasobservedonAprilfirst
Itwascelebratedinmuchthesamewayasitistodaywithpartiesanddancingintothelatehoursofthenight
Thenin1562,Pope(罗马教皇)GregoryintroducedanewcalendarfortheChristianworld,andthenewyearfellonJanuaryfirst
Thereweresomepeople,however,whohadn'theardordidn'tbelievethechangeinthedate,sotheycontinuedtocelebrateNewYear'sDayonAprilfirst
Othersplayedtricksonthemandcalledthem"Aprilfools
"Theysentthemona"fool'serrand"ortriedtomakethembelievethatsomethingfalsewastrue
InFrancetoday,Aprilfirstiscalled"Poissond'Avril
"Frenchchildrenfooltheirfriendsbytapingapaperfishtotheirfriends'backs
Whenthe"youngfool"discoversthistrick,theprankster(爱开玩笑的人)yells"Poissond'Avril
"(AprilFish
)TodayAmericansplaysmalltricksonfriendsandstranger